Neuter contraction of a presumed derivative of tamias (a dispenser or distributor; akin to temno, to cut); a dispensary or magazine, i.e. A chamber on the ground-floor or interior of an Oriental house (generally used for storage or privacy, a spot for retirement) -- secret chamber, closet, storehouse.

Matthew 24:26N-DNPGRK:ἐν τοῖς ταμείοις μὴ πιστεύσητεNAS: out, [or], 'Behold, He is in the inner rooms,' do not believeKJV: [he is] in the secret chambers; believeINT: [he is] in the inner rooms not believe [it]

Luke 12:3N-DNPGRK:ἐν τοῖς ταμείοις κηρυχθήσεται ἐπὶNAS: you have whispered in the inner rooms will be proclaimedKJV: in closets shall be proclaimedINT: in the chambers will be proclaimed upon